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I'll fill the filter if it's an open-side up installation. Have done so for decades, having watched an older brother do this a good 30yrs ago.
All the pressurized engine lube applications I know of with a filter, have the filter mounted downstream of the pump, therefore, you won't get oil pressure until the filter charges with oil and starts pushing oil into the system. Good thing is, this takes just a few seconds to happen with a dry filter.
Filter changes have the potential to be so messy on a Kohler V-twin given how/where they are mounted, I've never filled those.
Joel
All the pressurized engine lube applications I know of with a filter, have the filter mounted downstream of the pump, therefore, you won't get oil pressure until the filter charges with oil and starts pushing oil into the system. Good thing is, this takes just a few seconds to happen with a dry filter.
Filter changes have the potential to be so messy on a Kohler V-twin given how/where they are mounted, I've never filled those.
Joel